Traverse mechanism for yarn-winding machines.



L. I. CAMPBELL. TRAVERSE MECHANISM FOR YARN WINDING MACHINES. APPLICATION FILED MAR. 4. 1 9l6- RENEWED NOV. 21. I9I6- Patented Jan. 30, 1917.

2 SHEETS-SHEET I.

L. J. CAMPBELL.

TRAVERSE MECHANISM FOR YARN WINDING MACHINES. APPUCATION FILED MAR- 4, l9l6. RENEWED NOV. 27.1916,-

2 SHEETS-SHEET 2.

Patented Jan. 30, 1917.

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UNIVERSAL -WI1\TJDING COMPANY, 015 BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

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Application filed March A, 1916, Serial No. 82,031.

To all whom it may concern: v

Be it known that I, LEON J. CAMPBELL, a citizen of the' United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Traverse Mechanism for Yarn-Winding Machines; andI do hereby declare that the following is a full, clear and exact description thereof, reference being had to the accompanying drawings, and to the reference characters marked thereon, which form apart of this specification. I

This invention relates to a traverse mechanism for a textile or yarn winding machine of that type designed for producing a wound cop or bobbin of cylindric form with a tapered end, the winding being produced in advancing conical layers so that the growth of the packageis by longitudinalextension instead of diametrically. In a winding machine ofthe kind referred to and as heretofore constructed, the traverse wheel is re tained at all times in a fixed position at right angles to the traverse bar, with-the result that, when the traverse, wheel comes into contact with the base of the conical layer of .yarn wound, the point of contact and the.

center of the wheel are both in a common lane at right angles to thetraverse bar.

tanifestly, the duration of theperiod of contact of the traverse wheel with a yarn of a given thickness can not be changed without changing the pitch of the threads on the traverse bar, and, therefore, a traverse bar having threads of one pitch can not be used for winding yarns of varying thick-' nesses. 1

Among the objects of my invention is to provide a traverse mechanism of such a construction that a single traverse bar having screw threads of one pitch may be used for winding yarns of varying thicknesses.

In carrying out my invention, I adjustably mount the traverse wheel on the traverse bar, so that the traversewheel may be moved or adjusted laterally into any, one of a plurality of adjusted positions, and therefore vary the duration of the period of contact between the traverse wheel and the layer of yarn wound, and enable the traverse wheel and thread guide tobe advanced endwise of the traverse bar in the winding operation the proper distance in proportion Specification of Letters Patent.

to the thickness of the yarn being wound.

With my novel construction, a single traverse bar having threads of one pitch may be used, the traverse wheel being ad'usted' to accommodate for each thickness 0 yarn to be wound.

The invention consists further in the inatters hereinafter described and more particularly pointed out in the appended claims. 4 In the accompanying drawings Figure 1 is a top plan view of a yarn winding machine having applied thereto a traverse mechanism constructed in accordance with my invention; Fig. 2 is an enlargedtop plan view of the traverse mechanism completely removed from said machineyFig. 3 is a-detail sectional view of the traverse wheel, taken on line 33 of Fig. 4:; Fig. f is an elevational view ofone side of the traverse wheel; F ig. 5 is an elevational view, with parts in section, of the opposite side of said traverse wheel; Fig. 6 1s a sectional view, taken on line 66 of Fig. 2; Fig. 7 is a view taken on line 7-7 of Fig. 6, the traverse wheelbeing omitted for the sake of clearness of illustration; Fig. '8 is a top plan view, with parts in section, of the traverse wheel and its adjusting device, the latter showing the traverse wheel yieldably held in one of its positions of adjustment; Fig. 9 is a view of the same parts shown in Fig. 8, except that said parts are shown as havin been moved into a position'whereby latera adjustment of the traverse wheel may be accomplished; and Figs. 10 and 11 are diagrammatic views to behereinafter referredl to. 1 In the drawings, I have shown in detail one preferred form of traverse mechanism embodying the features of my invention, and as being applied to a yarn or textile winding machine of the kind referred to. As illustrated in Fig. 1, said machine comprises a winding head 10 having a hollow casing 11, in which is vjournaled a winding spindle 12 connected with the main shaft 13 by a Worm or skew gear 14. Said shaft 12 is connected with and rotates the cop or bobbin holding spindle 15. Arranged parallel and adjacent to said spindle 15 is a reciprocating traverse bar 16 slidably supported at its inner end in a bearin box 17 located in said casing 11 and simllarly supported at its outer end in an outboard bearing 18 secured to a {bracket 19 on the casing 11. Journaled in said casing 11 is a rock shaft 20 driven by the main shaft 13 through suitable connections not herein illustrated. Said rock shaft 20 is provided with a rock arm 21, which is connected with the inner end of the traverse bar 16 by a link 22, the latter being adjustably connected with said rock arm 21. Said skew gear 14'is connected with the spindle 12 by'a slidable clutch sleeve 23 normally held in engagement with said gear 14 by a helical spring 24 surrounding said sleeve and located between a collar 25 fixed to said shaft 12 and an annular flange 26 on said clutch sleeve 23. A clutch operating rod 27, rockably mounted in said casing 11, is provided at its outer end with a handle 28 and at its inner end with a finger 29 adapted,

when in contact with said flange 26, to disconnect the clutch 23 from the gear 14. A. fixed lug '(not shown), in the bearing box 17, extends to the spline groove 30 of the traverse bar 16, and holds the same from rotation during its reciprocation. So much of the machine shown and described forms no part of my present invention, but has been illustrated and referred to herein in order that the operation of my novel traverse mechanism may be clearly understood.

Referring now to said traverse mechanism: Said traverse bar 16 is provided with an eccentric screw thread 31 of sucha degree of eccentricity that there is a full thread on the side of the traverse bar facing the spindle 15, but no thread on the opposite side of said bar. Mounted on said bar 16 is a traverse wheel 32, comprising a nut 33 having fixed thereon a spherical or ballshaped member 34, upon which is loosely mounted a hub 35. Said hub 35 is provided on one side with an overhanging annular flange 36, between WhlCh and the said ball 34 is inserted and secured a fastening collar 37, which holds the hub 35 on said ball 34. Said hub 35 is provided with an annular flange 38, to which said traverse wheel 32 is detachably secured by a spring clip (Fig.

4). Said clip 40 is applied over said flange 36 and snaps formed therein. is inserted into into an annular groove 41 One end 42 of said clip 40 registering holes 43, 44 in said flange 38 and central web 45 of the traverse wheel. To prevent the traverse wheel 32 from rotating about the ball 34, the

- latter is provided with a longitudinal groove 46, into which extends a fixed pin 47 on sald hub 35. By. the construction described, the traversexwheel 32 may be tilted laterally on the ball 34. Mounted on said traverse bar 16 is a thread guide. holder 48 havlng two diverging arms 49, 50, carrying at thelr outer ends a thread guide 51 provided with a guide groove 52, through which passes the yarn 53 in the direction of the arrow a in Fig. 6. Said arms 49, are provided at their separated ends with tubu- 56, so that, pivots, the traverse wheel is swung or tilted i,21s,sse

Figs. 6 and 7. To support the yoke member, the bearing sleeve 55 on said arm 49 is provided with a plate 57 having at each end a laterally extending flange 58, 59 (Fig. 7). The legs 60, 61 of said yoke straddle said flanges 58 and 59, and are pivotally connected therewith by pivot pins 62, 63. The central web 64 of said yoke is provided with a laterally extending part 65 having therein a rectangular slot 66, as shown in Fig. 6. Pivotally mounted on said arm- 49 is a screw 67, one end of which is provided with an eye 68 through which extends a headed pivot pin 69. Threaded on said screw 67 is a sleeve 70 having at its inner end an annular flange 71 and at its outer end an annular finger piece 72. Said screw 67 and sleeve 70 extend through said slot 66. A portion 73 of said sleeve 70 adjacent the inner flange 71 is square or rectangular in cross-section, and is adapted to enter said slot 66, so as to hold said sleeve 7 0 against rotation on said screw 67. (See Figs. 6 and 8.) Surrounding said sleeve 70 and bearing against said slotted plate and finger piece, respectively, is a spring 74, which normally holds the slotted plate 65 against said flange 71 and on said squared part 73. Consequently, when the flange 71 is movedalong the screw 67 by turning the sleeve 7 O, the angular position of the yoke 56 is changed or adjusted. Said yoke 56 is provided with a tension spring 75 having a bail-shaped portion 76, which eX-- tends outwardly from the yoke 56 and bears against a side face of the traverse wheel 32 and engages behind an annular flange 78 on said hub- 35. (See Figs. 3 and 5.) As shown, the lower end of said spring 75 is attached to the lower leg 61, while the upper portion of said spring extends through the upper leg 60 and is coiled above the same and hooked or otherwise secured thereto. Said spring 75 normally holds the nut 33 in engagement with the screw threads 31 of the traverse bar 16. By forcing the traverse wheel radially toward the thread guide 51, the screw threads become disengaged, and the traverse wheel 32 and thread guide holder 48 may be moved freely along the traverse bar 16. {See dotted lines in Fig. 5). The bail 76 of the spring 75 engaging behind the flange 78 connects the traverse wheel 32 with the yoke when the yoke is swung on its mien on the ball 34. Manifestly, when the sleeve 70 is adjusted on said screw 67 the traverse wheel 32 is adjusted and held in a position at an inclination to the traverse bar 16. To increase ordecrease such inclination, the sleeve 70 is turned on the screw 67. To accomplish this, however, it is, first necessary to draw the yoke 56 outwardly against the spring 74, so as to swing the slotted plate 65 from thesquared part 73 of the sleeve 70. Thereupon said sleeve may be turned on said screw for the purpose of adjusting the position of the flange 71, the position of which determines the inclined position of the traverse wheel 32. After the sleeve 70 has been adjusted, the yoke is released, and the spring 7 4 swings the same on its pivots so as to position the slotted plate on the square part 7 3 and against the flange 71.

The traverse mechanism herein described and shown operates as follows: To begin the winding, the yarn 53 is wrapped around the bobbin 54 adjacent its base flange 77 (Fig. 11) and the machine started by throwing out the clutch finger 29. The traverse wheel 32 and thread guide holder 48 at this time have been moved along the traverse bar into starting position adjacent the base of the bobbin. As the bobbin 5 1 is rotated by the spindle12, the yarn is drawn from the supply over the thread guide 51 and wrapped around the.

bobbin, while at the same time the traverse bar 16 is moved endwise in a direction toward the outer end of the bobbin and carries therewith the traverse wheel 32 and'thread guide holder 48. In this movement of the parts, the yarn is wound down and about the conical base portion 78 of said bobbin until a portion of said yarn is turned about the bobbin at the apex of said conical portion, whereupon the direction of movement of the traverse bar 16 is reversed, and the yarn wrapped upwardly and about the conical portion 78. The first lap of yarn about the bobbin adjacent the base flange 77 prefer-' ably determines the external diameter of the package to be wound.

(See dotted line 0 in Figs. 10 and 11.) v

The traverse wheel 32 has previously been adjusted laterally at an inclination to the longitudinal axis of the traverse bar 16, and in the movement of the latter backward toward the base of the bobbin, the outer annular edge of said now inclined wheel will come into contact with the base of the wrapped conical layer of yarn before the center of the wheel reaches a position opposite the point of contact. As said traverse wheel is yieldably held in its inclined position by the springs 74-. and 75, the wheel, during the period of contact with the yarn wound and while the parts are moved toward the base of the bobbin, is swung against the tension of said springs from its inclined position of adjustment into a position substantially at right angles to the traverse bar 16, as shown by dotted line a? in Fig. 11. When the traverse wheel 32 reaches this position, the traverse bar 16 is at the limit of its inward endwise movement, and the latter begins its reciprocation in the opposite direction. The traverse wheel remains in contact with the conical layer of yarn wound until it swings back into its inclined position of adjustment, as shown in full lines in Fig. 11, and during the entire period of contact, the traverse wheel is turned by the rotating bobbin and advanced with the thread guide holder a 'suflicient distance so that the next conical layer of yarn wound will have its portion at the apex of such layer wrapped about the bobbin immediately in advance of that portion of the yarn at the apex of the previously wound layer. In other words, when winding a yarn of a given thickness, the traverse wheel 32 is first adjusted into the properposition at aninclination to the traverse bar, so that during said period of contact the traverse wheel and thread guide are advanced a distance slightly greater than the thickness of the yarn being wound. In this manner, the traverse wheelmay be set for yarns of varying thicknesses, and the latter wound upon a bobbin by the use of a single traverse bar having screw threads ofone pitch.

By having the traverse wheel adjustably mounted and yieldably held in its position of adjustment, the duration of the period of contact between the traverse wheel and the conical layer of yarn wound on the bobbin may be. varied, so as to vary the distance that the traverse wheel and thread guide holder are advanced endwise of the traverse bar. Manlfestly, should the traverse wheel be adjusted into a position slightly offset from the line 5, shown in Fig. 10, the duration of the period of contact between the outer edge of the traverse wheel and the layer of yarn wound would be less than the duration of the period of contact between such parts if the traverse wheel were ofl'set laterally a greater distance from said line b. This is due to the fact that the distance the traverse wheel is moved laterally while in contact with the layer of yarn wound varies with the degree of adjustment" of the traverse wheel. For instance, when the traverse wheel is adjusted in the position shown in full lines in Flg. 11, the traverse wheel while in contact with the yarn wound is moved laterally into the position shown by the dotted line (Z and back again, it being understood, of course, that the distance back into full line position is a trifle less than the distance into dotted line position, as the traverse wheel while in contact with the yarn is rotated and advanced along the traverse bar. But this distance is slightly more than the thickness of the yarn being wound. It follows, therefore, that in one position of adjustment the traverse and thread guide holder on the traverse bar will be sufiicient to properly wind on the bobbin a yarn of a different thickness. In other'words, by being able to vary the duration of the period of contact between the traverse wheel and the yarn wound, a traverse bar having screw threads of one pitch may be used for winding yarns of varying thicknesses, as the traverse wheel may be set accordingly. Consequently, to wind yarns of varying thicknesses, it is unnecessary to employ separate traverse bars having threads of a pitch proportionate-to the thickness of the yarns to be wound. With my novel traverse mechanism, this objectionable feature is avoided, and a machine equipped with my traverse mechanism may properly wind yarns of varying thicknesses, it being necessary only to adjust the traverse wheel on the traverse bar in the machine the proper distance for the thickness of yarn to be wound.

Although I havefherein described in detail one form of traverse-mechanism embodying the features of my invention, it is to be understood that the exact details of construction and arrangement of the parts of the machine may be variously changed and modified without departing from the spirit or scope of the invention. For instance, my improvement maybe applied to a machine in which the winding-spindle itself is reciprocated to give the traverse to the yarn while the traverse-rod remains relatively stationary.

Without limiting myself to the exact details of construction and arrangement of the mechanism shown and described, what I claim is 1. A traverse mechanism, comprising a traverse bar, a bearing member mounted on said traverse bar and having screw-threaded connection therewith, a traverse wheel adjustably mounted on said bearing member and adapted to turn therewith, and means for adjusting said traverse wheel laterally on said bearing member and holding said traverse wheel in its position of adjustment.

2. A traverse mechanism, comprising a traverse bar, a traverse wheel adjustably mounted on said traverse bar and having screw-threaded connection therewith, and means for adjusting and holding said traverse wheel in a position at an inclination to said traverse bar.

3. A traverse mechanism, comprising a traverse bar, a traverse wheel adjustably mounted on said traverse bar and having screw-threaded connection therewith, and

means for adjustably and yieldably holding said traverse wheel in a position at an inclination to said traverse bar.

4. A traverse mechanism, comprising a traverse bar, a bearing member mounted on said traverse bar and having screw-threaded connection therewith, a traverse wheel adjustably mounted on said bearing member, means holding said traverse wheel from rotation about said bearing member, and means for adjusting said traverse wheel laterally on said bearing member. and yieldably holding said traverse wheel in its position of adjustment. R

5. -A traverse mechanism, comprising a traverse bar, a bearing member mounted on said traverse bar and having screw-threaded connection therewith, a traverse wheel adjustably mounted on said bearing member, means holding said traverse Wheel from ro tation about said bearing member, and means for adjusting and yieldably holding said traverse Wheel in a position at an inclination to said traverse bar.

6. A traverse mechanism, comprising a traverse bar, a thread guide holder mounted thereon, a bearing member mounted on said traverse bar andhaving screw-threaded connection therewith, a traverse wheel adjustably mounted on said bearing member, means for holding said traverse wheel against rotation about said bearing member, and an adjusting device mounted on said thread guide holder and adapted to adjust said traverse wheel laterally on said bearing member and yieldably hold said traverse wheel in its position of adjustment.

7. A traverse mechanism, comprising a traverse bar, a thread guide holder mounted thereon, a traverse wheel adjustably mounted on said traverse bar and having screwthreaded connection therewith, and an adjusting device mounted on said thread guide holder and adapted to adjust and yieldably hold said traverse wheel in a position at an inclination to the said traverse bar.

8. A traverse mechanism, comprising a traverse bar, a thread guide holder mounted thereon, a traverse wheel adjustably mounted on said traverse bar and having screwthre'aded connection therewith, a yoke pivotally mounted on said thread guide holder and havingconnection with said traverse wheel, an adjustable member connected with said thread guide holder and adapted to move said yoke for adjusting said traverse wheel into a position at an inclination to said traverse bar, and a resilient member for yieldably holding said traverse Wheel in its adjusted position.

9. A traverse mechanism, comprising a traverse bar, a thread guide holder mounted thereon, a traverse wheel adjustably mounted on said traverse bar and having screwthreaded connection therewith, a yoke pivrelease otally mounted on said thread guide holder ,and having connection with said traverse wheel, a screw-threaded member pivotally mounted on said thread guide holder, a sleeve threaded on said threaded member and adapted to engage said yoke, said sleeve and said yoke having coacting parts adapted when engaged to prevent the rotation of said sleeve, and a spring for normally holding said coacting parts in engagement.

10. A traverse mechanism, comprising a traverse bar, a thread guide holder mounted thereon, a traverse wheel adjustably mounted on said traverse bar and having screwthreaded connection therewith, a yoke pivotally mounted on said thread guide holder, and having connection with said traverse wheel, a screwthreaded member pivotally mounted on said thread guide holder, a sleeve threaded on said screw-threaded member and adapted to engage said yoke, said yoke having a rectangular slot, said sleeve having an arbored part adapted to enter said slot, and a spring acting against said yoke and sleeve.

11. A traverse mechanism, comprising a traverse bar, a thread guide holder mounted thereon, a traverse'wheel adjustably mounted on said traverse bar and having screwthreaded connectiomtherewith, a yoke pivotally mounted on said thread guide holder, a resilient member connecting said yoke with said traverse wheel, a screw-threaded member pivotally mounted on said thread guide holder, a sleeve threaded on said screw-threaded member and adapted to engage said yoke, said sleeve and said yoke adapted when engaged to prevent the rotation of said sleeve, and a spring acting against said sleeve and yoke.

12. A traverse mechanism, comprising a screw-threaded sleeve, a traverse wheel mounted on said sleeve, and means connecting said traverse wheel with said sleeve whereby said traverse wheel may be tilted laterally on said sleeve.

13. A traverse mechanism, comprising a screw-threaded sleeve, a spherical bearing member secured to said sleeve, a traverse wheel mounted on said spherical bearing member and adapted to be tilted laterally thereon, and coacting means on said traverse wheel and spherical bearing member where- .by said traverse wheel will be held against rotation relatively to said sleeve.

14. A traverse mechanism, comprising a screw-threaded sleeve, a spherical bearing member secured to said sleeve, a traverse wheel mounted on said spherical bearing member and adapted to be tilted laterally thereon, said spherical member being provided with a longitudinal slot, and a pin on said traverse wheel and extending into said slot.

15. In a winding machine, the combination with a rotating winding-spindle and means for guiding the yarn to the spindle, of means to efi'ect a relative traverse'between' the spindle and guiding-means, and a contact-wheel adapted to be rotated by engage ment with the winding to effect a relative advance between the guiding-means and the winding-spindle longitudinally of the latter, said contact-wheelarranged to tilt laterally on its axis during its rotation to extend its period of contact with the winding.

16. In a windin machine, the combination with the winding-spindle and means to traverse the yarn on the spindle, of means to progressively advance the traverse of the yarn longitudinally of the spindle, and a contact-wheel for operating said traverseadvancing means through contact with the winding, said wheel arranged with its axis normally parallel with the axis of the spindie but adjustable into diiierent positions of inclination in relation thereto in the manner and for the purpose described.

17. In a windin machine, the combination with the rotating winding-spindle and means to traverse the. yarn on the spindle, of means to progressively advance the traverseof the yarn longitudinally of the spindle comprising a rod arranged in spaced relation with the spindle, a feed-wheel on the rod adapted to contact with the winding to be rotated therefrom, resilient means for maintaining said wheel normally inclined to the axis of the spindle, and means to adjust said resilient means to vary the inclination of the wheel.

18. In a winding machine, the combination with the rotating winding-spindle and means to traverse the yarn on the spindle, of means to progressively advance the traverse of the yarn longitudinally of the spindle comprislng a rod arranged in spaced reltd lltlti 'lation with the spindle, a feed-wheel on the rod adapted to contactwith the winding to be rotated therefrom, and means to maintain said feed-wheel inclined to the axis of the winding-spindle while allowing it to swivel laterally on the rod.

19. In a winding machine, the combination with the rotating winding-spindle and means to traverse the yarn on the spindle, of means to progressively advance the traverse of the yarn longitudinally of the spindle comprising a rod arranged in spaced relationwith the spindle, a feed-wheel on the rod adapted to. contact with the winding to be rotated therefrom, and a swivelbearing for connectin the wheel with the rod to allow'it to tilt laterally thereon.

20. In a winding machine, the combination with the rotating winding-spindle and means to traverse the yarn on the spindle, of means to progressively advance the traverse of the yarn longitudinally, of the spindle comprising a rod arranged in spaced rellllll rat lation with the spindle, a feed-Wheel on the rod adapted to contact with the Winding to be rotated therefrom, and resilient means to normally maintain the wheel inclined to thetion-wheel adapted to contact with the winding to operate the traverse-advancing means, and means to adjust said wheel laterally in diflerent angular positions in relation to the axis of the winding-spindle. 22. In a winding machine, the combination with a winding-spindle and threadguide, of means to cause a relative traverse between the spindle and guide, means to effect a relative advance of the traverse of the guide longitudinally of the spindle, and a friction-wheel adapted to contact with the winding to operate the traverseadvancingmeans, said wheel inclined to the axis of the Winding-spindle and adjustable in angular relation thereto to efi'ect an extended contact of the wheel with the winding at the end of each traverse.

In testimony that I claim the foregoing as my invention I afiix my signature in the presence of two witnesses, this 1st day of March, A. D. 1916.

LEON J. CAMPBELL.

Witnesses:

L. L. CAMPBELL, EUGENE O. WANN. 

